Search Documents
Search Again
Search Again
Refine Search
Refine Search
-
Planeamiento de minas a cielo abierto mediante optimización estocástica
By Giovanni Franco Sepúlveda
Dado que los procesos de planificación minera en los depósitos a cielo abierto en Colombia se realizaron a través de herramientas deterministas que excluyen la evaluación de riesgos y las incertidumbr
Mar 1, 2014
-
Reducción del daño al macizo rocoso en tajeos utilizando detonadores de doble retardo y cojines de agua como espaciador
By Yuri Alberth Piñas Esteban
El siguiente trabajo técnico describe la importancia del uso de los detonadores no eléctricos de doble retardo y los cojines de agua como espaciador, en los taladros del techo y tajeos, puesto que su
Sep 14, 2009
-
Evolución del sistema de control y supervisión operación L-SX-EW Toquepala
By Jorge Oviedo
La planta de lixiviación, extracción por solventes y electrodeposición (L-SX-EW) de Southern Perú es una operación hidrometalúrgica dedicada a la lixiviación ácido – bacteriana de los botaderos de min
Aug 25, 2002
-
-
Recovery Of Expanded Polystyrene From Coated Patterns Rejected From Lost Foam Casting (7e824799-4a95-4f4f-bb75-096af0709dc7)
By J. Drelich, J. Pletka
Lost foam casting patterns are foamed polystyrene shapes glued together into the shape of the part to be cast and are coated with a refractory material consisting of a mineral mixture and binders. Pr
Jan 1, 2001
-
Mineral Commodity Summaries 1995 - Significant Events, Trends, And Issues - The Mineral Sector Of The U.S. Economy
A stronger U.S. economy stimulated the domestic mineral sector in 1994. Metals demand was spurred by robust U.S. motor vehicle sales, while demand for major industrial minerals rose in response to hig
Jan 1, 1995
-
Análise Da Influência Da Composição Química Na Transferência De Calor Durante A Solidificação De Aços Especiais
By Bruna Brito Freitas
O lingotamento contínuo de tarugos é um processo extremamente complexo dependente de uma série de variáveis. Todas essas influenciam diretamente na qualidade do aço lingotado e na produtividade, quase
Aug 7, 2018
-
Coal - Mine Lighting: Review of Progress in Techniques and Research in Great Britain
By A. Roberts
This paper reviews progress in equipment design and in the techniques applied to mine lighting in Great Britain. The incidence of the disease miner's nystagmus, which was a major source of concer
Jan 1, 1961
-
The Marketing of Nickel
By K. H. J. Clarke
"ALTHOUGH nickel was not identified as a separate element until a Swedish scientist, Axel Frederick Cronstedt, did so in 17 51, its utilization dates from pre-historic times. From its humble beginning
Jan 1, 1960
-
Some Effects of Wood, Cement, and Aluminium Sulphate on Flotation of Broken Hill Lead-Zinc Ore
Results of flotation tests on lead-zinc ore from Broken Hill, N.S.W., confirmed that flotation at pH 9 in the presence of cement gave poorer metallurgical results than flotation at pH 7. Additions of
Jan 1, 1974
-
Exploración Geofísica en Real 3D proyecto Charcas, San Luis de Potosí, México
By Leduar Ramayo C.
En la actualidad se observa que la industria minera se está enfocando en la exploración profunda en ambientes brownfield, ya que los precios de los metales y los avances tecnológicos permiten el minad
Sep 1, 2017
-
High Oxygen Shrouded Injection At Falconbridge: Five Years Of Operation
By Joël P. T. Kapusta
Although Peirce-Smith converting remains the workhorse in matte converting, the copper and nickel industries are still confronted with production hindrances such as tuyere blockage, excessive refracto
Jan 1, 2005
-
Palynología Aplicada
By Alejandro Euribe Dulanto
El presente estudio describe el uso de la palinología y su aplicación a la geología económica. Asimismo, revisa la morfología y la clasificación de las esporas y polen, como la distribución de este p
Jul 20, 1961
-
Clasificación geomecánica y su aplicación
By Pedro Alejandro Samané Tuni
El presente texto describe las soluciones que disponen los geólogos e ingenieros para actuar de forma adecuada en la planificación, diseño y construcción de los proyectos, así como se muestran los err
May 1, 2013
-
The Tennant Creek Goldfield
The Tennant Creek goldfield is situated in the Northern Territory, 360 miles north of Alice Springs, or a tot~l distance of 1,300 miles north of Adelaide, and 600 miles south of Darwin. The auriferous
Jan 1, 1942
-
Laboratory Assessment Of Rock Fragmentation Process By Continuous Miners – Preprint 97-172
By V. B. Achanti, A. W. Khair
Laboratory studies were carried out at West Virginia University to investigate the rock fragmentation mechanism by continuous miners using an automated rotary cutting simulator. The primary factors in
Feb 24, 1997
-
RI 5197 Mobile Laboratory For Recording Blasting And Other Transient Phenomena ? Introduction And Summary
By T. C. Atchison
This report describes a mobile laboratory designed and constructed by the Bureau of Mines in 1950 to meet the needs of an experimental blasting research program. The laboratory has facilities for maki
Jan 1, 1956
-
Gold Deposits of the Matachewan Area, Ontario
By W. D. Sinclair
"Between 1934 and 1956, nearly 31 million grams of gold were produced in the Matachewan area from deposits on properties belonging to Young-Davidson Mines Limited and Matachewan Consolidated Mines Lim
Jan 1, 1982
-
IC 6693 Some Notes On Methods And Costs Of Equipping And Developing Prospects ? Introduction
By Chas. F. Jackson
The mining literature is replete with descriptions of methods and costs of operation at producing mines. To day the mine manager can find published information bearing upon almost any problem with whi
Jan 1, 1933
-
Liebherr Celebrates 50th Anniversary, Introduces 300-ton Mining Truck
By William R. Yernberg
In October 1999, Liebherr-America, Liebherr Construction and Liebherr Mining Equipment held anopen house at its Newport News, VA, plant. The open house was held to celebrate the company’s50th anni
Jan 1, 2000